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Note 7 - Intangible Assets (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Amortization, Total $ 1,723,773 $ 1,205,537 $ 2,916,966 $ 2,370,709